Introduction

Planning mode projects multiple MPs to evaluate their absolute and relative performance with respect to target and limit reference points.

Table 1. Projected biomass relative to the LRP

The probability that projected biomass is above 50% BMSY. Probabilities of 50% or lower are shaded red. Probabilities over 90% are shaded green.

Table 2. Projected biomass relative to the TRP

The probability that projected biomass is above BMSY

Figure 1. Biomass projection relative to the Target and Limit Reference Points

Projections of biomass and yield relative to MSY levels. The blue regions represent the 90% and 50% probability intervals, the white solid line is the median and the dark blue lines are two example simulations. Grey horizontal lines denote the Target (BMSY) and Limit (50% BMSY) Reference Points.

Figure 2. Long-term HCR

Projections of biomass relative to MSY and unfished (B0) levels given a starting depletion of half BMSY. The rebuilding analysis simulates the fishery currently in a depleted state even if the user-specified depletion in the operating model is higher. In these cases, the rebuilding analysis provides added assurance whether a particular management procedure would be likely to rebuild the stock if the user-specified depletion level is overly optimistic and in need of rebuilding. The blue regions represent the 90% and 50% probability intervals, the white solid line is the median and the dark blue lines are two example simulations. Grey horizontal lines denote the limit and target reference points

Figure 3. Short-term HCR

As Figure 2 but over the first 10 years.

Figure 4. Evaluation of current uncertainties

This figure identifies those questions across which there is the highest variability in long term yield (average yield over last 10 years of the projection). This figures identifies which elements of the questionnaire (Step A) are the most consequential uncertainties.

Figure 5. Value of information

This figure identifies the key observation uncertainties (biases and errors) in determing the long-term yield performance of MPs (average yield over last 10 years of the projection).

Figure 6. Yield projection

Future yield as a fraction of current yield

Figure 7. Fishing mortality rate projection

Future fishing mortality rate relative to FMSY

Figure 8. Yield - Biomass trade-offs

Trade-off between yield and biomass risks

Version Notes

The package is subject to ongoing testing. If you find a bug or a problem please send a report to so that it can be fixed!





shiny-2019-05-23-13:05:45

Open Source, GPL-2 2019